def visit_expr()

in tools/ida_scripts/hexrays_examples/ctree_practical_example.py [0:0]

• 18 lines of code
• 5 McCabe index (conditional complexity)

    def visit_expr(self, expr):
        if expr.op == idaapi.cot_call:
            if idc.get_name(expr.x.obj_ea) == self.func_name:
                carg_1 = expr.a[HASH_ENUM_INDEX]
                api_name = ida_lines.tag_remove(
                    carg_1.cexpr.print1(None)
                )  # Get API name
                expr_parent = self.cfunc.body.find_parent_of(expr)  # Get node parent

                # find asg node
                while expr_parent.op != idaapi.cot_asg:
                    expr_parent = self.cfunc.body.find_parent_of(expr_parent)

                if expr_parent.cexpr.x.op == idaapi.cot_var:
                    lvariable_old_name = (
                        expr_parent.cexpr.x.v.getv().name
                    )  # get name of variable
                    ida_hexrays.rename_lvar(
                        self.cfunc.entry_ea, lvariable_old_name, api_name
                    ) # rename variable
        return 0